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AT&T VAB-1 Phone for Business Advanced Communication Router - $65 (pacific heights)
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Key Features & Functions
Dual Connectivity: Uses both cellular (4G LTE) and wired internet (Broadband/PSTN) for reliability.
Failover: Automatically switches to cellular if your primary wired internet goes down.
Battery Backup: Includes a 24-hour backup battery to maintain service during power outages.
Legacy Support: Carries traditional analog signals for phones, fax machines, and alarm systems.
M2M Data: Supports Machine-to-Machine data transmission.
Device Compatibility: Plugs into standard phones, fax machines, and alarm panels.
What it's for
Copper Retirement: Helps businesses and homes transition away from old copper phone lines as AT&T phases them out.
Business Continuity: Ensures vital communication and data lines stay active.
Home Phone Replacement: Offers a modern, reliable "landline" service.
How it works
It's a box that connects to your existing modem or directly to the wall, providing an analog phone jack (FXS) for your devices.
It connects to the internet via your existing broadband and uses LTE as a backup, all managed through the device for seamless failover